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(No Model.) 2 Sheets-Sheet 1.

A. BANNER s G. ROTHENBUGHER.

` ARBONIC ACID 0B OTHER GAS ENGINE.

No. 502,430. Patented' Aug. 1, 1893.

A 7TOHNEYS (NoModel.)l l 2 Sheets-Sheet 2. A. DANNER & G. ROTHENBGHER.

CARBONIG 'ACID 0R OTHER GAS ENGINE.

No. 502,430. Patented Aug. 1, 1893.

M W www wm/EssEs.-

ATTORNEY:

UNITED STATES rPATENT OFFICE.

ADAM DANNER AND GEORGE ROTHENBOHER, OF NEW YORK, N. Y.

CARBONIO-ACID OR OTHER GAS ENGINE.

SPECIFICATION forming part of Letters Patent No. 502,430, dated August1, 1893.

Application tied February i4, "1893. serial no. 462.268. or@ modem y Toall whom it may concern:

Be it known that we, ADAM BANNER, a subject of the German Emperor, andGEORGE ROTHENBCHER, acitizen of theUnited States, both residing in thecity, county, and Stateof New York, have invented certain new and usefulImprovements `in Carbonio-Acid or other Gas Engines; and we do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanyingdrawings, andA to letters of reference marked thereon, whichform a part of this specification.

This invention relates to new and useful improvements in carbonio acidand other gas engines and it consists in the construction andarrangement of inlet and outlet valves to the piston of the engine andinthe governor, whereby carbonio acid gas and similar gases may beutilized to actuate the engine.

1t consists also in the arrangement and combination of parts hereinafterdescribed and claimed.

In the drawings Figure `1,` is a side elevation of the improved engine;Fig. 2 a plan View thereof; Fig. 3 a transverse section enlarged of theinlet and outlet valves and the piston of the engine. Fig. 4 is avertical section of the valve. Fig. 5 is an enlarged plan view of thegovernor, and Fig. 6 an enlarged detail transverse section partly brokenaway, of the same.

In the drawings a represents the fiy wheel of the engine; b the steamcylinder and c the connecting rods between the crank of the ily wheeland the piston CZ which works in said cylinder b. The connection betweenthe flywheel a and piston cZ and the construction of the parts do notdiffer from the arrangement and construction in ordinary engines.

Entering the head of cylinder Z9 are two pipes: the inlet pipe e andoutlet or exhaust pipe j'. The inlet pipe e is provided with a rotary oroscillating spindle valve g operated by the handle h and the outlet pipeis also provided with a similar valve t' operated by the handle j. Thesevalves are preferably arranged alongside each other so that they mayreadily be operated by the governor 7c in the manner hereinafterdescribed.

The governor 7c consists of the shaft Z connected by suitable mechanism'nt to the crank of the fly wheel a. In the drawings this mechanismconsists of aseries of shafts and cranks so geared that therotary motionof the flywheel is communicated to the crank Z of the shaft Z of thegovernor, but it is manifest that any other suitable means ofcommunication between. the iiy-wheel and the shaft Z may be used withoutdeparting from the spirit of our invention.

Between the ends of'shaft Z is keyed the drum n. Loosely sliding on saidshaft Z is also placed the sleeve o carrying the arm p designed in itsrevolution to normally strike upon and operate the handle Zt of theinlet valve g. This sleeve o is provided at its opposite end with thecollar q. Extending from the drum n and pivoted thereto are two elbowlevers r r the free armss s of which are provided with adjustableweights s s' connected by a spiral spring t, all as shown in Figs. 5 and6.

The short arms u of the elbow levers r r engage in suitable recesses nin the collar q of sleeve o keyed to the shaft Z. Near'one end thereofis the projecting cam arm o, designed, when said shaft is rotating toperiodically strike Vagainst and operate the' handle j of outlet valvet'. c.

The operation is as follows: A drop of liquefied carbonio acid gas orasuitable volume of other gas passes through the inlet pipe e when thevalve g is opened into the cylinder ZJ actuating the piston CZ which inturn through the connecting `rods c rotates the iiy-wheel. The fly-wheelin rotating actuates the shaft Z of the governor la through theconnecting mechanism m. The shaftZ in rotating carries the arms p and 'vwhich arms are so placed on said shaft that they will alternately comein contact with and push over the handles 7L and j of the inlet andoutlet valves g and t' respectively. When the shaft Zof the governor isrotated by the outward movement or expansion of the piston rZ throughthe fly wheel and connecting mechanism, the arm uwill, when the pistonhas traveled the entire length of the cylinder or the entire length ofits stroke, strike against and throw over the handle j of the outletvalve 't' and thus open the outlet. Again at the inward stroke of theIOO Y theengine exceed a certainprescribed` speed piston, the arm p ofthe shaft Z of the governor will strike against and throw over thehandle h of valve g and thus open the inlet to the cylinder. It is to beunderstood that normally the handles h and j of the valves are thrown bysprings h into such a position that the valves are closed and theopening of these valves is controlled by the governor la through thearms p and fu. As already eX- plained the arm p operating the inletvalve is not carried by the shaft I of the governor but by the slidingsleeve o thereon. Should the governor 7c through the rapid revolution ofits shaft l will either refuse to open the inlet valve g or will onlyopen the same to a slight extent (by the contact of the curved ends ofthe handle h, and arm 29) thus reducing instantly the excess of speed.This is accomplished by the drum 0 and elbow levers r r which latter,'when rotated rapidly by said drum tend to throw off at a'tangent thespring controlled weight arms s s', when the arms u operating in therecesses u of the sleeve 0 will slide the sleeve outward and thus throwthe armp out of alignment or contact with the handle h of the inletvalve to a greater or less extent. When the speed slackens the springstend to return the arms o" r and thereby the sleeve o and its armp tothe normal position when the outlet valve willl be opened to its normalextent. It is obvious that any valve may be adapted to be controlled bythe governor 7a although the form shown in the drawings -will suffice toillustrate the spirit of ourinvention.

Having thus described our invention, what we claim as new, and desire tosecure byLetters Patent, is-

1. The combination of the cylinder, the piston, connecting rod andfly-wheel of an engine, with the inlet and outlet pipes arrangedparallel to each other and entering the end of the cylinder, the inletand outlet valves arranged alongside each other and provided withextending handles, and with the governor consisting of a shaft operateddirectly by the iy-wheel `and sleeve splined to said shaft and weightedelbow levers pivoted to said shaft and adapted to slide said sleeve onsaid shaft, said shaft and sleeve being adapted to operate respectivelythe outlet and inlet valves, substantially as described.

2. The combination of the cylinder b, pisV ton d, connecting rods c andfly-wheel a, with the shaft l, mechanism whereby the Iiy-wheel rotatessaid shaft, the drum fn., keyed to said shaft, elbow levers r rcontrolled by spring and pivoted to said drum, a sliding sleeve osplined to said shaft Z and adaptedv to be operated by said levers fr r,and aims o and p carried respectively by the shaft land sleeve o, andwith the inlet pipe e, outlet pipe f, arranged parallel with each otherand entering the ends of the cylinder, inlet valve g, outlet valve t',said inlet and outlet valves being provided with projecting springcontrolled handles 7L and j respectively, all arranged so that when saidsleeve oand shaft Z are rotated they will alternately operate saidvalves g and 't' by the arms v and p alternately engaging land throwingover the` handlesj and 7L respectively, substantially as described.

In testimony that we claim the foregoing we have hereunto set our handsthis 13th day of December, 1892.

ADAM DANNEE. GEoEeE yEoTHENB UCHEE.-y

W i tn esses z ALFRED GARTNER, WM. D. BELL.

